Sudden Commencement Geomagnetic storm starts at 13:23 UT (5:23 PST)
Posted by Lowell on March 18, 2002 at 08:00:48:

The earth was hit be a strong geomagnetic storm today at 13:23 UT. There
was a sudden shift in Hn field nearly doubling it's intensity within 1-2 minutes (GOES).
The sudden commencement can be observed on seismograms from Yakutsk,
So. Karori, New Zealand, the South Pole and VNDA. Both seismograms in China
went off line when the storm hit, perhaps indicating an associated power or communications
problem.
The longitudes of 21W and 159E were sub-solar and anti-solar at the time of the
sudden commencement. Regions within 30 degrees longitude (including the Andreanoff
Islands, New Zealand, Kamchatka, Kurils, New Britain, Vanuatu (anti) and the
mid-Atlantic Ridge, Spain, and westernmost Europe (sub-solar) are the regions
most expected to see seismicity enhancement during the next day. If the storm
persists, a further report will be made.
For more information see the URL below.



Follow Ups:
     ● Seismogram URL - Lowell  08:14:41 - 3/18/2002  (13891)  (0)